Albert, Arthur Lemuel. <br/><br/>
Fundamentals of telephony /  
by Arthur A. Albert 
 - New York, London :   McGraw-Hill,   1943. 
 - 366 p. : il., fot. ; 23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELEFONIA
<br/><br/><label>Universal Decimal Class. No.: </label>621.395